Girodiscs A2-179 Lightweight 2-piece Rotor System is a direct replacement for OEM brake discs. Girodisc rotors bolt directly to the car and work with OE calipers. Upgrading your brakes with lightweight high performance replacements maintains the factory brake bias as well as the ABS efficiency. Girodisc A2-179 rotors weigh 13.0lbs ea vs. 15.3lbs ea for the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.
The rotor and hat have a floating mount system, which utilizes 10 drive pins. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by grade 12 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.
Once the rotors are worn to the minimum thickness specification of 20mm, the rotor ring can be replaced separately from the hat at a reduced cost.
Sold/priced per pair
Girodisc A2-179 Brake Disc Vehicle Fitment:
2018-2020 Audi RS3
2015-2019 Audi S3
2017-2020 Audi TT RS
2016-2019 Audi TTS
2012-2019 VW Golf R
2015-2019 VW GTI w/PP*
2008 VW R32
* Performance Package brakes